methyl(dimethylphosphinyl)acetate | 113493-51-9

• 分子结构分类: 有机化合物 - 有机磷化合物 - 亚磷酸三烷基酯
• 英文名称: methyl(dimethylphosphinyl)acetate
• 英文别名: trimethyl phosphonoacetate；Methyl [(dimethoxyphosphanyl)oxy]acetate；methyl 2-dimethoxyphosphanyloxyacetate
• CAS: 113493-51-9
• 化学式: C₅H₁₁O₅P
• 分子量: 182.113
• InChiKey: UXCVLGZBQWJYET-UHFFFAOYSA-N

物化性质

• 沸点：
  169.2±23.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  11
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  54
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl(dimethylphosphinyl)acetate 以 氟化硫醯基 、 甲苯 为溶剂， 反应 20.0h， 以97%的产率得到methyl 6β-(4-hydroxybut-1-yl)-8-(trimethylsilyl)-1,2,3,4,4aβ,5,6,8aα-octahydronaphthalene-5β-carboxylate
  参考文献：
  名称：

  Enantioselective synthesis of the bottom half of chlorothricolide. 3. Studies of the steric directing group strategy for stereocontrol in intramolecular Diels-Alder reactions

  摘要：

  The intramolecular Diels-Alder reactions of a series of C(7)-alkoxy-substituted 2(E),8(Z),10(E)-undecatrienoates and trienals containing removable C(9)-Br or C(9)-SiMe3 substituents (11, 12, 13, 33, 42, 43, 44, 45) were studied as part of a program directed toward the total synthesis of the bottom half of chlorothricolide. The IMDA reaction of trienoate 3 that lacks a C(9) substituent had previously been shown to cyclize with poor stereoselectivity to a mixture of four cycloadducts. It was expected that the IMDA reactions of trienes containing C(9) substituents (i.e., steric directing groups) would proceed with substantially enhanced stereoselectivity via trans-fused transition state A owing to nonbonded interactions that the steric directing groups experience in the competitive transition states B-D. Cis-fused transition states C and D suffer from serious interactions between C(9)-X and the axial C(6)-H, while trans-fused transition state B is destabilized by a 1,3-eclipsing interaction with the C(7)-alkoxyl group. Only the desired transition state, trans-fused transition state A, suffers from no serious interactions involving the C(9) steric directing group. These predictions were verified experimentally: the trans-fused cycloadduct deriving from A was the major product in all cases. Stereoselectivity for trans-fused cycloadducts was consistently greater, using C(9)-TMS directing groups compared to C(9)-Br substituted systems (for IMDA reactions under analogous conditions), but the C(9)-Br group appeared to have a greater influence on the partition between transition states A and B (see Table I). A surprising aspect of this study, however, is that significant amounts of cis-fused cycloadducts were obtained from the thermal cyclizations of the above-named trienes (12-45%), and this pathway was not entirely suppressed even in the Lewis acid catalyzed cycloadditions of trienals 44 and 45 (5-9% of cis fused cycloadduct). The results with TMS-substituted trienes 33, 42, and 44 thus are in disagreement with an earlier report by Boeckman and Barta (ref 5f) that the IMDA reaction of 33 gives ''a single cycloadduct (> 100:1).'' The cis-fused diastereomers most probably arise via boat-like transition state E rather than the chair-like transition state C. Cis-fused cycloadducts were not observed in the IMDA reaction of TMS-substituted triene 61 that lacks a C(7)-alkoxy substituent, suggesting that the C(7)-alkoxy groups electronically deactivate trans-fused transition state A such that boat-like transition state E is competitive only with substrates containing such C(7)-alkoxy substituents. Data are also presented that show that the C(9)-TMS substituents lead to an increase in reactivity (e.g., the IMDA reaction of 61 that proceeds at ambient temperature and the acid-catalyzed cyclocondensation of TMS diene aldehyde 63). This study defines bromo trienoate 43 as the optimal precursor to the bottom half unit (2) of chlorothricolide, even though the IMDA reaction of 43 is less selective than that of TMS-substituted trienes 42 and 44. The synthesis of 43 (Figure 4) involving the Pd0-catalyzed cross-coupling reaction of dibromo olefin 35 and vinylboronate 37 is shorter and considerably more efficient than the syntheses of TMS trienes 42 and 44, and this compensates for the fact that 43 is the least selective IMDA substrate.Syntheses that proceed by way of TMS trienoates like 42 or TMS trienals like 44 become competitive only if a more efficient triene synthesis is devised.

  DOI：

  10.1021/jo00003a049
• 作为产物：
  描述：

  (6Z,8E)-13-Hydroxy-7-trimethylsilanyl-trideca-6,8-dienal 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 lithium chloride 作用下， 以 乙腈 为溶剂， 反应 12.0h， 生成 methyl(dimethylphosphinyl)acetate 、 methyl 6β-(4-hydroxybut-1-yl)-8-(trimethylsilyl)-1,2,3,4,4aβ,5,6,8aα-octahydronaphthalene-5β-carboxylate
  参考文献：
  名称：

  Enantioselective synthesis of the bottom half of chlorothricolide. 3. Studies of the steric directing group strategy for stereocontrol in intramolecular Diels-Alder reactions

  摘要：

  The intramolecular Diels-Alder reactions of a series of C(7)-alkoxy-substituted 2(E),8(Z),10(E)-undecatrienoates and trienals containing removable C(9)-Br or C(9)-SiMe3 substituents (11, 12, 13, 33, 42, 43, 44, 45) were studied as part of a program directed toward the total synthesis of the bottom half of chlorothricolide. The IMDA reaction of trienoate 3 that lacks a C(9) substituent had previously been shown to cyclize with poor stereoselectivity to a mixture of four cycloadducts. It was expected that the IMDA reactions of trienes containing C(9) substituents (i.e., steric directing groups) would proceed with substantially enhanced stereoselectivity via trans-fused transition state A owing to nonbonded interactions that the steric directing groups experience in the competitive transition states B-D. Cis-fused transition states C and D suffer from serious interactions between C(9)-X and the axial C(6)-H, while trans-fused transition state B is destabilized by a 1,3-eclipsing interaction with the C(7)-alkoxyl group. Only the desired transition state, trans-fused transition state A, suffers from no serious interactions involving the C(9) steric directing group. These predictions were verified experimentally: the trans-fused cycloadduct deriving from A was the major product in all cases. Stereoselectivity for trans-fused cycloadducts was consistently greater, using C(9)-TMS directing groups compared to C(9)-Br substituted systems (for IMDA reactions under analogous conditions), but the C(9)-Br group appeared to have a greater influence on the partition between transition states A and B (see Table I). A surprising aspect of this study, however, is that significant amounts of cis-fused cycloadducts were obtained from the thermal cyclizations of the above-named trienes (12-45%), and this pathway was not entirely suppressed even in the Lewis acid catalyzed cycloadditions of trienals 44 and 45 (5-9% of cis fused cycloadduct). The results with TMS-substituted trienes 33, 42, and 44 thus are in disagreement with an earlier report by Boeckman and Barta (ref 5f) that the IMDA reaction of 33 gives ''a single cycloadduct (> 100:1).'' The cis-fused diastereomers most probably arise via boat-like transition state E rather than the chair-like transition state C. Cis-fused cycloadducts were not observed in the IMDA reaction of TMS-substituted triene 61 that lacks a C(7)-alkoxy substituent, suggesting that the C(7)-alkoxy groups electronically deactivate trans-fused transition state A such that boat-like transition state E is competitive only with substrates containing such C(7)-alkoxy substituents. Data are also presented that show that the C(9)-TMS substituents lead to an increase in reactivity (e.g., the IMDA reaction of 61 that proceeds at ambient temperature and the acid-catalyzed cyclocondensation of TMS diene aldehyde 63). This study defines bromo trienoate 43 as the optimal precursor to the bottom half unit (2) of chlorothricolide, even though the IMDA reaction of 43 is less selective than that of TMS-substituted trienes 42 and 44. The synthesis of 43 (Figure 4) involving the Pd0-catalyzed cross-coupling reaction of dibromo olefin 35 and vinylboronate 37 is shorter and considerably more efficient than the syntheses of TMS trienes 42 and 44, and this compensates for the fact that 43 is the least selective IMDA substrate.Syntheses that proceed by way of TMS trienoates like 42 or TMS trienals like 44 become competitive only if a more efficient triene synthesis is devised.

  DOI：

  10.1021/jo00003a049

文献信息

• [EN] INTERMEDIATES FOR THE PREPARATION OF HALICHONDRIN B<br/>[FR] INTERMEDIAIRES POUR LA PREPARATION D'HALICHONDRINE B
  申请人：EISAI CO LTD

  公开号：WO2005118565A1

  公开（公告）日：2005-12-15

  The present invention provides macrocyclic compounds, synthesis of the same and intermediates thereto. Such compounds, and compositions thereof, are useful for treating or preventing proliferative disorders Formula (F-4).

  本发明提供大环化合物，其合成以及中间体。这些化合物及其组合物对于治疗或预防增殖性疾病（F-4式）是有用的。
• A novel synthesis of 2,5-dihydropyrrole derivatives as enantiomerically enriched building blocks
  作者：Christophe Cinquin、Michel Bortolussi、Robert Bloch

  DOI：10.1016/0040-4020(96)00323-7

  日期：1996.5

  A general synthesis of optically active 2,5-dihydropyrroles (3-pyrrolines) substituted at the 2-position by a functionalized chain is described. A highly stereoselective intramolecular Michael reaction afforded the five-membered nitrogen rings with an excellent enantiomeric purity. The unsaturation was generated by a retro Diels-Alder reaction.

  描述了在2位被官能化的链取代的旋光的2,5-二氢吡咯（3-吡咯啉）的一般合成。高度立体选择性的分子内迈克尔反应提供了具有优异对映体纯度的五元氮环。不饱和是通过逆狄尔斯-阿尔德反应产生的。
• Stereoselective total synthesis of the cembranolide diterpene anisomelic acid
  作者：James A. Marshall、Bradley S. DeHoff

  DOI：10.1016/s0040-4039(00)85085-6

  日期：1986.1

  A highly stereoselective total synthesis of the cembranolide diterpene anisomelic acid has been achieved via a convergent route. Macrocyclization was effected by a (Z)-selective intramolecular Horner-Emmons condensation.

  经由收敛途径已经实现了西布罗内酯二萜烯苯二酸的高度立体选择性的全合成。大环化是通过（Z）-选择性分子内霍纳-埃蒙斯缩合实现的。
• Synthesis and structure of molecular tweezers containing active site functionality
  作者：Steven C. Zimmerman、Zijian Zeng、Weiming Wu、David E. Reichert

  DOI：10.1021/ja00001a027

  日期：1991.1

  A series of molecules has been synthetized in which a functional group is buried inside an aromatic binding cleft. These novel compounds, called «molecular tweezers», have a methyl ester, a carboxylic acid or a nitrile in their clefts

  已经合成了一系列分子，其中一个官能团被掩埋在芳香键合裂缝中。这些被称为“分子镊子”的新型化合物在其裂缝中具有甲酯、羧酸或腈
• TOTAL SYNTHESIS OF 6-OXO-GRINDELIC ACID METHYL ESTER
  作者：Akihiko Kimura、Shigeo Katsumura、Sachihiko Isoe

  DOI：10.1246/cl.1983.15

  日期：1983.1.5

  The first synthesis of the methyl ester of 6-oxo-grindelic acid (1) from decalone derivative 2 through γ-hydroxyenone 7 was described.

  描述了从十酮衍生物 2 到 γ-羟基烯酮 7 的 6-氧代-格林德酸甲酯 (1) 的首次合成。